code: def test_dtypes_with_names(parser):
      df_result = read_xml(
          StringIO(xml_dates),
          names=["Col1", "Col2", "Col3", "Col4"],
          dtype={
              "Col2": "string",
              "Col3": "Int64",
              "Col4": "datetime64[ns]",
          },
          parser=parser,
      )
      df_iter = read_xml_iterparse(
          xml_dates,
          parser=parser,
          names=["Col1", "Col2", "Col3", "Col4"],
          dtype={
              "Col2": "string",
              "Col3": "Int64",
              "Col4": "datetime64[ns]",
          },
          iterparse={"row": ["shape", "degrees", "sides", "date"]},
      )
  
      df_expected = DataFrame(
          {
              "Col1": ["square", "circle", "triangle"],
              "Col2": Series(["00360", "00360", "00180"]).astype(
                  "string"
              ),
              "Col3": Series([4.0, float("nan"), 3.0]).astype("Int64"),
              "Col4": DatetimeIndex(
                  ["2020-01-01", "2021-01-01", "2022-01-01"],
                  dtype="M8[ns]",
              ),
          }
      )
  
      tm.assert_frame_equal(df_result, df_expected)
      tm.assert_frame_equal(df_iter, df_expected)
  
imports: from __future__ import annotations
  from io import StringIO
  import pytest
  from pandas.errors import ParserWarning
  import pandas.util._test_decorators
  from pandas import DataFrame, DatetimeIndex, Series, to_datetime
  import pandas._testing
  from pandas.io.xml import read_xml
label_desc: Use image node_id 6 for calling a global function with example usage: test_dtypes_with_names(parser) without return types